added url to book controller params
Merge pull request #51 from kereru-2014/more_borrowers_controller

added url to book controller params
click event on book image sending correct data
Merge pull request #53 from kereru-2014/click_event_on_book_image

click event on book image sending correct data
Merge pull request #52 from kereru-2014/sign_out

added signout button
merge conflict on borrower_controller sorted